TM 10-8145-222-23
0052
REPLACE CONTINUED
16. Install tie-down straps at locations where removed to secure installation.
17. Close and secure power box door (Figure 9, Item 1).
18. Reconnect battery (WP 0053, Reconnect).
19. Perform Test Cable Assembly P1A in accordance with this WP.
20. Place cable assembly P1A (Figure 8, Item 1) and P2A (Figure 8, Item 2) on storage hooks (Figure 8, Item 3 and
Item 4).
21. Place MTRCS back into desired mode of operation (TM 10-8415-222-10, Operating Procedures).
Replace Cable Assembly P2A
Remove
1. Make sure external electrical power unit is turned OFF.
2. Remove cable assembly P1A (Figure 8, Item 1) and P2A (Figure 8, Item 2) from storage hooks (Figure 8, Item
3 and Item 4) and unroll sufficiently to allow room to work at power box (Figure 8, Item 5).
3. Open power box door (Figure 10, Item 1) and secure open.
4. Use a multimeter set to voltage scale to verify no AC voltage is present on switch S1 (Figure 10, Item 2)
terminals S1-1, S1-3, S1-5, S1-7, S1-9, and S1-11 (Figure 2).
5. Tag red wire terminating at switch S1 (Figure 10, Item 2) terminal S1-3 (Figure 2).
6. Tag black wire terminating at switch S1 (Figure 10, Item 2) terminal S1-7 (Figure 2).
7. Tag orange wire terminating at switch S1 (Figure 10, Item 2) terminal S1-11 (Figure 2).
8. Tag white wire terminating at transformer TR1 (Figure 10, Item 3) terminal TR1-X0 (Figure 3).
NOTE
There are three ground wires attached to the power box GND; one for cable
assembly P1A ground, one for cable assembly P2A ground, and one for standby
motor ground. Only one of the wires is applicable to cable assembly P2A and will
have to be removed to accomplish removal of cable assembly P2A. The other two
ground wires will remain inside the power box and be re-connected when cable
assembly P2A is re-installed.
9. Tag one white ground wire and two green ground wires terminating at power box ground lug (Figure 10, Item 6)
on power box (Figure 10, Item 4).
10. Loosen three terminal screws (Figure 10, Item 5) and disconnect three wires from switch S1 (Figure 10, Item 2)
terminals S1-3, S1-7, and S1-11 (Figure 2).
0052-14
